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发明名称
Trolley shoe
摘要
申请公布号
US1811388(A)
申请公布日期
1931.06.23
申请号
US19300460204
申请日期
1930.06.10
申请人
THE OHIO BRASS COMPANY
发明人
GRAHAM WALTER F.
分类号
B60L5/08
主分类号
B60L5/08
代理机构
代理人
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